Ford 2009 F-150 v.2 Manuel d'utilisateur télécharger pdf (Page 301)

Shifting to/from 4L (4X4 Low)

1. Bring the vehicle to a speed of 3 mph (5 km/h) or less.

2. Place the transmission in N (Neutral).

3. Move the 4WD control to the desired position.

The message center will display 4X4 SHIFT IN PROGRESS during the

shift. The message center will then display the system mode selected.

If any of the above shift conditions are not met, the shift will not occur

and the message center will display information guiding the driver

through the proper shifting procedures.

If 4X4 SHIFT IN PROGRESS is displayed for more than five

seconds, transfer case gear tooth blockage is present. To alleviate

this condition, move the vehicle forward approximately five feet

(2 meters) to allow the transfer case to complete the shift.

Note: Some noise may be heard as the system shifts or engages; this is

normal.

Electronic locking differential (ELD) (if equipped)

The electronic locking differential (ELD) is a device housed in the rear

axle which allows both rear wheels to turn at the same speed. The ELD

can provide additional traction should the vehicle become stuck. The

ELD is electronically activated by the driver and can be shifted on the

fly. It is intended for use in mud, rocks, sand, or any off-road condition

where maximum traction is needed. It is not intended for use on dry

pavement.

The ELD is affected by the following conditions:

• The 4WD control must be in either 4H (4X4 High) or 4L (4X4 Low)

mode.

• The ELD will not engage if the vehicle speed is above 20 mph

(30 km/h) in 4X4 High or 56 mph (90 km/h) in 4X4 Low.

• In 4H (4X4 High), the ELD will disengage at speeds above 25 mph

(40 km/h) and will automatically reengage at speeds below 20 mph

(30 km/h).

• In 4L (4X4 Low), the ELD will disengage at speeds above 62 mph

(100 km/h) and will automatically reengage at speeds below 56 mph

(90 km/h).

The ELD is designed for off-road use only.

2009 F-150 (f12)

Owners Guide, 2nd Printing

USA (fus)

Driving

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Ford 2009 F-150 v.2 Manuel d'utilisateur Page 301